Rubber antioxidant MBZ (Zinc 2-mercapto benzimidazole, molecular formula C14H10N4S2Zn, CAS number 3030-82-6) serves as a premium rubber antioxidant primarily utilized in natural rubber (NR), chloroprene rubber (CR), ethylene propylene rubber (EPR), styrene-butadiene rubber (SBR), and nitrile rubber (NBR). Features of this product include an off-white powder form, an odorless profile with a distinctly bitter taste, solubility in acetone and alcohol, yet it remains insoluble in benzene, gasoline, and water. When it comes to thermal oxidation protection, MBZ rubber antioxidant demonstrates superior efficacy when synergistically combined with amine antioxidants. Alternatively, it can function effectively on its own or be paired with other antioxidants such as DNR or AP. Notably, its initial melting point is a minimum of 270℃, the drying loss rate does not exceed 1.50%, zinc content ranges from 15.0% to 20.0%, and the residue rate on a 150μm sieve is capped at 0.50%. The product density is recorded at 1010kg/m³ under 20℃. For packaging, it is available in 20kg plastic woven bags, plastic-paper composite bags, or kraft paper bags. Storage conditions should ensure a dry, well-ventilated area, shielded from direct sunlight, with a shelf life extending up to 24 months.